JPH0160023U - - Google Patents
Info
- Publication number
- JPH0160023U JPH0160023U JP15587087U JP15587087U JPH0160023U JP H0160023 U JPH0160023 U JP H0160023U JP 15587087 U JP15587087 U JP 15587087U JP 15587087 U JP15587087 U JP 15587087U JP H0160023 U JPH0160023 U JP H0160023U
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- magnetic fluid
- ring
- sealing member
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/762—Sealings of ball or roller bearings by means of a fluid
- F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
- F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図および第２図は本考案の一実施例にかか
り、第１図は上半部を示す一部省略の縦断面図、
第２図は磁性流体の速度分布を略示した説明図で
ある。第３図および第４図は従来例にかかり、第
３図は第１図に対応した図を示しており、第４図
ａは内輪回転における磁性流体の速度分布を略示
した説明図、第４図ｂは外輪回転における磁性流
体の速度分布を略示した説明図である。
２１……内輪、２２……外輪、３０……シール
部材、４０……環状磁石（磁性流体保持部材）、
５０……磁性流体。
1 and 2 show an embodiment of the present invention, in which FIG. 1 is a partially omitted vertical sectional view showing the upper half;
FIG. 2 is an explanatory diagram schematically showing the velocity distribution of the magnetic fluid. 3 and 4 relate to the conventional example, FIG. 3 shows a diagram corresponding to FIG. 1, FIG. FIG. 4b is an explanatory diagram schematically showing the velocity distribution of the magnetic fluid during rotation of the outer ring. 21... Inner ring, 22... Outer ring, 30... Seal member, 40... Annular magnet (magnetic fluid holding member),
50...Magnetic fluid.
Claims (1)
の密封装置において、 前記外輪に環状のシール部材を取り付け、この
シール部材の内周部と前記内輪との間で密封部を
構成するとともに、 前記シール部材の外側で前記内輪に磁性流体保
持部材を取り付け、この磁性流体保持部材の外径
端と前記外輪の内周面との間に磁性流体を保持さ
せて磁性流体シールを構成していることを特徴と
する外輪回転軸受の密封装置。[Claims for Utility Model Registration] In a sealing device for an outer ring rotating bearing in which an inner ring is fixed and an outer ring is rotated, an annular sealing member is attached to the outer ring, and a seal is formed between the inner circumference of the sealing member and the inner ring. a magnetic fluid holding member is attached to the inner ring outside the sealing member, and the magnetic fluid is held between the outer diameter end of the magnetic fluid holding member and the inner circumferential surface of the outer ring, so that the magnetic fluid is A sealing device for an outer ring rotating bearing, characterized in that it constitutes a seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15587087U JPH0160023U (en) | 1987-10-12 | 1987-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15587087U JPH0160023U (en) | 1987-10-12 | 1987-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0160023U true JPH0160023U (en) | 1989-04-17 |
Family
ID=31433882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15587087U Pending JPH0160023U (en) | 1987-10-12 | 1987-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0160023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113180A (en) * | 1989-09-25 | 1991-05-14 | Nippon Densan Corp | Magnetic fluid seal device |
-
1987
- 1987-10-12 JP JP15587087U patent/JPH0160023U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03113180A (en) * | 1989-09-25 | 1991-05-14 | Nippon Densan Corp | Magnetic fluid seal device |